baber/WOPTO huggingface dataset:
Patent GB-120119-A (GB)
Title: Improvements in and connected with Electrical Relays for use in Cancelling Arrangements for Electrical Signalling Systems and other purposes.
IPC: H01H50/70
Filed: 1917-11-14
Abstract: 120,119. Sterling Telephone & Electric Co., Bell, F. G., and Davey, W. C. Nov. 14, 1917. Relays.-An electro-magnetic relay is provided with a set of contacts operated during the continued energization of the relay, and a pair of contacts momentarily operated through a swing- ing arm which is displaced when struck by the relay armature. The period of swing of the arm may be varied, and one pair of the set of contacts may be utilized to close a locking circuit for the relay. The armature b of a magnet a operates, when attracted, a set of contacts q, r, s, t, u through a plunger w and momentarily opens a pair of contacts m, n through a swinging arm d pivoted at e. The arm d carries a projection p adapted to engage the contact m when the arm d is struck by the armature b through a buffer spring h. The period of oscillation of the arm d and consequently the period of operation of the contact m is varied by varying the positions of the weights p, l on the arm d. A normally open circuit may be closed by causing the projection p to engage the contact n. The Provisional Specification states that the relay may be applied to the cancelling mechanism of the electric signalling system described in Specification 112,497, [Class 40 (i), Electric signalling systems &c.].
Patent GB-1218571-A (GB)
Title: Speech therapeutic apparatus
Inventor: WOHL DAVID HERSCH
IPC: H03K3/282
Filed: 1967-04-12
Abstract: 1,218,571. Metronomes. ELECTRONIC METRONOMES. Ltd. May 21, 1968 [April 12, 1967], No. 6752/67. Heading G3T. An electronic metronome for speech therapy comprises a transistorized multivibrator 11 which supplies electrical pulses to a speaker 12 in the form of an earpiece. The pulse frequency is altered by adjusting a variable resistor 17 and in a modification the capacitor 20 may be switched to a lower value to increase the pulse repetition frequency so that adjustment of the resistor 17 causes the sound to change from individual pulses to notes of a distinct pitch. The multivibrator may supply pulses through an additional transistor to several earpieces as well as two light bulbs acting as visual stimuli.
Patent GB-877247-A (GB)
Title: Blending and apparatus therefor
IPC: B01F29/60
Filed: 1960-05-12
Abstract: In blending a finely divided synthetic resin with a liquid plasticizer, agglomeration of the resin is prevented by tumbling in a flexible container of smooth material to which the resin will not adhere.  Heating or cooling gas (air or nitrogen) may be supplied from a heater and blower through the mesh of the container of fabric, e.g. of glass fibre, or of a synthetic plastics material in the form of a woven monofilament fabric, or of a continuous film; in the latter case heat exchange takes place through the walls of the bag. Specified resins are homopolymers of vinyl chloride and copolymers thereof with vinyl acetate, vinylidene chloride or diethylmaleate. Specified plasticizers are di-2-ethyl-hexylphthalate, acetyl tributyl citrate, butyl phthalyl butyl glycollate, dibutyl sebacate, diisobutyl adipate, dicapryl phthalate, dioctyl phthalate, di-iso-octyl phthalate, dipropylene glycol dibenzoate, 2-ethylhexyl diphenyl phosphate, ethyl phthalyl ethyl glycollate and tricresyl phosphate.  In an example a resin is blended with di-2-ethylhexylphthalate, bariumcadmium laurate and titanium dioxide.
Patent GB-926563-A (GB)
Title: Photographic camera equipped with view finder and exposure meter
IPC: G03B17/08
Filed: 1959-05-15
Abstract: 926,563. Photographic cameras. VOIGTLANDER A.G. May 15, 1959 [Sept. 19, 1958], No. 16783/59. Class 98 (1). A photographic camera having a built-in photo-electric exposure meter includes a unitary glass block Albada finder and an optical system including at least one mirror in the finder block and arranged to form a virtual image at infinity of the exposure meter needle and optionally of a follow-up pointer for that needle. As shown, a virtual image of an exposure meter needle 11 and a follow-up pointer 16 illuminated by external light through an opening in the camera cap 2 is formed in the viewfinder by way of a plane mirror 8, a positive collimating lens 8 and optionally a negative lens 88, and a plane mirror 6 cemented in a slot cut in the bottom of the finder block at about 45 degrees to the finder axis in the horizontal plane and at about 6 degrees to the vertical so that the mirror is tilted to bring the reflected image into the exit pupil of the finder. To improve the illumination of the needle and pointer in poor directional lighting, a lightcollecting plate having parallel prismatic wedges may be swung over the light opening in the camera cap (Figs. 1, 13a, 13b, not shown). Instead of employing a collimating lens 8, the virtual image of the needle and pointer may be formed by a curved full mirror surface which may be formed on the same surface as the semireflecting mirror 24 of the finder, i.e. on the finder objective 21, or a transparent surface adjacent to this (Figs. 10, 12, not shown), or a portion of this semi-reflecting lens surface may be made of a different curvature and made fully reflecting (Fig. 11, not shown). In these arrangements the needle and pointer are arranged directly above the finder block and the image is introduced into the block by a plane mirror in the block perpendicular to the vertical plane and inclined to the optical axis in that plane at 45 degrees plus about half the angle which the useful bounding finder rays make with the axis. In a further modification (Fig. 14, not shown), the needle and pointer are parallel to and illuminated through a window at the front of the camera cap and a real image is formed by a lens on the mirror in the finder block which introduces the image into the finder field, a collimating curved mirror being formed on the rear face of the finder objective. In a variation of this last modification, the needle and pointer may be arranged with their axes of rotation perpendicular to that specified, a further mirror being provided to bring an image of them into the finder.
Patent GB-1100203-A (GB)
Title: A method of producing seams, and a sewing machine for carrying out the method
IPC: D05B81/00
Filed: 1965-04-21
Abstract: 1,100,203. Sewing machines. FRITZ GEGAUF A.G. 21 April, 1965 [27 Jan., 1965; 6 Feb., 1965], No. 16839/65. Heading D1G. A seam is produced by a zig zag sewing machine arranged to drop all the stitches at one side of the needle swing, the seam thereby being straight and having an increased stitch length equal to the sum of the work feed movements between the penetrations on the other side of the needle swing. The seam is intended for detachably tacking together two lengths of material, the normal stitch length being adjusted to the maximum and the thread tension being reduced to prevent the lower thread being drawn into the work. As shown, a plain zig zag seam 2 is converted into a straight seam 3 by dropping stitches at all the right hand needle penetrations 4. A decorative seam 7 is converted into a straight seam 8 by dropping all the right hand needle penetrations 9. Dropping of the stitches may be effected either by providing an adjustable needle stop in the needle bar and raising the needle sufficiently to allow the looptaker beak to pass below the needle eye at the right hand penetrations when the stitch width is adjusted to the maximum, or by shortening the needle, or by providing a needle with two eyes and threading the upper eye to effect dropped stitches. Alternatively, the needle may be deflected laterally or turned angularly at penetrations on one side of the needle swing.
Patent GB-1245207-A (GB)
Title: Jet propulsion and jet lift engines
Inventor: SHORT FREDERICK RAYMOND
IPC: B64C29/00
Filed: 1970-04-09
Abstract: 1,245,207. Deflecting propulsion jets. GENERAL MOTORS CORP. 9 April, 1970 [17 April, 1969], No. 16969/70. Heading B7G. [Also in Division F1] The invention relates to a jet propulsion and jet lift engine comprising a horizontally disposed propulsion nozzle and a vertically disposed lift nozzle, both nozzles being in continuous open communication with the gas duct, the area of the propulsion nozzle being variable from an open to a closed position, and the area of the lift nozzle being variable from an open to a closed position. The engine shown is of the gas turbine type, the turbine being indicated at 14, the jet pipe at 21, 15, the propulsion nozzle at 17 and the lift nozzle at 23. Reheat equipment may be provided as indicated at 18, 19. The propulsion nozzle 17 comprises a series of pivotally mounted triangular flaps 49 which are interconnected by pairs of pivotally mounted flaps 50 whereby the nozzle may be adjusted between a fully open position, Figs. 1 and 3 and a fully closed position, Fig. 5. The lift nozzle is formed by an opening 23 in the lower part of the jet pipe portion 21, the forward edge of the opening being shown at 25 and the rearward edge at 26. Flap members 27, 28 are associated with the lift nozzle being pivotally mounted at 30 adjacent the edge 25 and at 31 adjacent the edge 26 respectively. The lift nozzle is shown in the closed position in Figs. 1 and 2, being closed by the flap 27, the free edge of which abuts against the pivot end of the flap 28. Sealing means are provided at 41, 42 also at 43. In Fig. 4, the flaps 27, 28 are moved to open the lift nozzle 23 and the propulsion nozzle 17 is in the closed position; the flaps 27, 28 are disposed to give a rearward component to the gas discharging through the lift nozzle 23 so as to impart a forward component of thrust. The flaps 27, 28 are movable between positions providing maximum reverse thrust, through maximum lift to maximum forward thrust, the movement of the flaps of the lift nozzle and of the propulsion nozzle being co-ordinated in inverse ratio so that total engine thrust is maintained at full value.
Patent GB-768096-A (GB)
Title: Improvements in or relating to aerial arrays
Inventor: BENHAM RENE GEORGE
IPC: H01Q1/12
Filed: 1954-06-09
Abstract: 768,096. Clamp fastenings. BELLING & LEE, Ltd. June 3, 1955 [June 9, 1954], No. 17000/54. Class 44. [Also in Group XXVIII] In an aerial array comprising first and second crossing members 1, 2, the first member 1 is apertured to receive a pin 6 and one end 5 of the pin is apertured to receive the second member 2, the other end 7 of the pin extending through the first member and being adapted to receive locking means 9 thereon, the arrangement being such that when the second member is engaged in said end 5 of the pin and the pin is located in the first member with the longitudinal axis of the pin transverse to the longitudinal axis of each crossing member, actuation of the locking means causes the second member to be gripped between the pin and the first member. As shown, the two members 1,. 2 are tubes and the member 1 has two coaxial apertures for receiving the pin 6. One aperture is relieved at opposite sides as indicated at 8 to position the member 2.
Patent GB-146122-A (GB)
Title: Improvements in and relating to telegraphic reception
IPC: H04L25/24
Filed: 1920-06-23
Abstract: 146,122. Siemens & Halske Akt.-Ges. Sept. 27, 1918, [Convention date]. Receiving systems and apparatus.-The receiving or repeating system of a code telegraph system comprises a relay which amplifies sufficiently the dot impulses of small amplitude due to line inertia and limits the dash impulses of larger amplitude. A valve amplifier, an amplifier with a current limiting device, or a magnetomicrophonic relay with abutments may be employed. Transmitted impulses of the form shown at I, Fig. 1, and received in the form shown at II<a> would normally be amplified to a form shown in broken lines at III. By employing a valve amplifying arrangement shown in Fig. 2, the amplified impulses take the form shown in full lines at III, Fig. 1. The grid circuit of the valve contains a resistance r and a polarizing-battery b, and the receiver R is placed directly in the anode circuit. In a modification, the anode circuit contains a resistance shunted by a capacity and the receiver R, in order that the receiver may be influenced by changes of potential in the anode circuit, and is not normally energized. In further modifications, the amplifier is connected to line through a transformer, or capacities are placed between the lines and the resistance r, and these arrangements are employed when the received impulses take the form shown at II<b>, Fig. 1. In the modification shown in Fig. 6, the anode circuit of the valve V is coupled to the grid-filament circuit of a second valve V<2> through a condenser K<1>. The valve V<1> is arranged to amplify fully all the received impulses, but the time constants of the resistances R', R<2> are such that the amplification of the larger impulses, by the valve V<2>, is limited.
Patent GB-1168706-A (GB)
Title: Flow Dividers.
Inventor: STACEY HUGH JOHN
IPC: F15B13/02
Filed: 1967-04-13
Abstract: 1,168,706. Valves. PARKER-HANNIFIN CORP. 13 April, 1967 [14 April, 1966], No. 17060/67. Heading F2V. A flow divider 6, in a directional control valve V on, e.g. a fork-lift truck, to control flow from an inlet 12 to an outlet port 18, supplying the lift motor, and an outlet 14, supplying a power steering motor, comprises a valve element 16 slidable in a bore 5 between first and second positions, respectively closing and opening the port 18, an orifice plate 21 movable relative to the valve element between first and second positions respectively providing a restricted passage and a more restricted passage, and springs 17 and 19 biasing the valve element and orifice plate to their respective first positions. In operation, when flow from the inlet 12 to the outlet 14, via tubular member 24 and passages 25 causes a pressure drop across plate 21 to overcome the loading of spring 17, the valve element moves to its second position to open port 18 and allow flow to motor ports 10. Upon an increase in pressure drop, the plate 21 moves against spring 19 to its second position to seat on the end of tubular member 24 and close all but the centre port 23 in the plate. If a further increase in pressure drop occurs the element 16 moves to a third position bringing a step 26 into contact with a spring follower washer 27 and spring 28, and flow through passages 25 is restricted by the wall of the bore 5. Flow from the port 18 passes to the valve V in which a spool 3 reciprocates in a bore 2 which is intersected by a by-pass passage 4, pressure feed passages 8, connecting with the passage 4 through check valves 9, motor passages 10, and return passages 11. A relief valve 15 is disposed between the inlet 12 and return passage 11.
Patent GB-794741-A (GB)
Title: Improvements in electric plug fittings
Inventor: HUNT SIDNEY ARTHUR
IPC: H01R13/59
Filed: 1955-06-14
Abstract: 794,741. Two-part couplings; strain-taking devices for flexible leads. WILCO PRODUCTS PROPRIETARY, Ltd. May 1, 1956 [June 14, 1955], No. 17089/55. Class 38 (1). In a plug consisting of a tubular casing 1 enclosing a pin-contact-carrying member 2, the cable 14 passes through a rubber tube 17, the inner end of which is enclosed in a rearwardlyextending, tubular boss 11 on the casing and is adapted to be contracted on to the cable, so as to grip the same, by a clamping member 15 which screws into the boss 11 and bears on a ring 22 having a tapered surface 21 which cooperates with a tapered surface 20 on the tube 17.
Patent GB-872408-A (GB)
Title: Process for preparing phosphonates
Inventor: BEACH LELAND KENNETH
IPC: C07F9/40
Filed: 1959-05-20
Abstract: A methane phosphonic acid derivative of the formula <FORM:0872408/IV (b)/1> where R1 and R2 are hydrogen, methyl or a methane phosphonate-containing radical are prepared by reacting phosphorous acid and/or a methyl phosphite with a methyl ester of phosphoric acid.  Temperatures up to about 350 DEG C. are specified, preferably 100-275 DEG C.  A catalyst such as BF3 may be present as well as the phosphate.  In one embodiment POCl3 is added to PCl3 fed to methanol giving a mixture of methyl phosphites and phosphates which may be reacted directly.  In another embodiment a methyl phosphite is added at some stage, preferably towards the end, of the staged recirculating pyrolysis of dimethyl phosphite to methane phosphonates.  Specification 872,409 is referred to.
Patent GB-1463535-A (GB)
Title: Surface profile measuring instruments
IPC: G01B7/28
Filed: 1974-04-19
Abstract: 1463535 Recording apparatus DR ING PERTHEN GmbH 19 April 1974 17172/74 Heading G1J A surface profile measuring instrument includes a profile plotter 9 in which the same stylus automatically plots the profile and records digital  measured values and associated control settings of the instrument on the chart. As shown in Fig. 3, the digital characters are built up by controlling contact of the stylus with the chart over successive transverse scans across the chart, each character being built up from a 5 x 7 matrix, with two additional positions for each character for character spacing. Each transverse scan is duplicated, so the stylus makes 14 scans per line of characters. Fig. 2 shows a block diagram of the stylus control circuit for digital character writing. A pulse generator 1 drives a column counter 2. A character counter 3 is advanced each time the column counter 2 switches from six to zero, and a line counter 4 is advanced each time the character counter 3 switches from eleven to zero. A sawtooth generator 8 controlled by the counter 3 supplies a voltage causing the stylus of plotter 9 to scan across the chart once for twelve characters. Counter 3 also causes characters to be passed from a character store 5 to a character generator 6 which passes digital signals to a multi-plexer 7 to control writing of the stylus.
Patent GB-561033-A (GB)
Title: A device for removing and utilising unvapourized fuel in the lubricating oil, in the sumps of internal combustion engines
IPC: F01M13/04
Filed: 1942-12-03
Abstract: 561,033. Auxiliary changes. CAMPBELL, G. S., and WOODMAN, F. E. Dec. 3,1942, No. 17181. [Class 7 (ii)] A device for re moving and utiliz ing unvaporizec fuel in the lubri cating oil in the sump comprise! an exhaust-heated chamber f intc which oil is drawn through a pipe g by engine suction applied through a pipe e connected to the induction manifold ; the oil lifts a float b until a valve d carried thereby closes the pipe e whereupon the heat vaporizes the fuel in the-oil and the vapour pressure forces oil out of the chamber through narrow passages h and an outlet pipe j, leading to the crank-case, until the float sinks and re-opens the suction passage e. Non-return valves are provided in the oil pipes g, j and a hand cock may be fitted to the suction pipe e to put the device in or out of action. Exhaust gases pass through a tubular compartment a at the side of the chamber f.
Patent GB-313603-A (GB)
IPC: G02B21/20
Filed: 1929-06-05
Abstract: 313,603. Zeiss, C., [Firm of]. June 16, 1928, [Convention date]. Microscopes.-Microscope tubes, for alternative monocular and binocular use, are provided with three eyepiece tubes, one of which is fixed in position and the other two are arranged symmetrically to a plane containing the axis of the fixed tube. At least one of these is movable and adapted in its movement to withdraw from the line of sight of the fixed eyepiece tube the ray-dividing system with which the microscope is provided. The tube has a body 1 provided with a thread 2 to take an objective, and on the body 1 is mounted the monocular eyepiece tube. 25 for direct vision. For binocular vision there is fitted in the body 1 on a pivoted frame 5 a ray-dividing prism system 9, 10, 12 having a semi-silvered surface 11 permitting a portion of the rays to pass to the prism 33 in the eyepiece tube 31 and reflecting the remainder into the prism system 21, 23 and thence to the prism 34 in the tube 32. The tubes 31, 32 are connected by steel bands to rotate equally in opposite directions for interocular adjustment and the tube 31 is fitted with a stop screw 41 engaging a pin 42 on the pivoted frame 5, so that when the tube 31 is turned out of its operative position the ray-dividing prism system is moved out of the line of the fixed tube 25 against the action of the spring 16. Correction of the length of the optical path modified by the prisms is effected by the concave lens 8, which moves with the prism system.
Patent GB-220607-A (GB)
Title: A method of and means for measuring short intervals of time
IPC: G04F8/00
Filed: 1924-07-18
Abstract: 220,607. Atlas-Werke Akt.-Ges. Aug. 18, 1923, [Convention date]. Time. - indicators.- Short intervals of time are measured by the movement of the indicator 4 of an electric measuring instrument of the rotating coil, electromagnet or hot wire &c. kind. The current may be switched on at 10 and at the beginning of the interval and the brake 7 released to stop the movement of the indicator at the end, or the circuit in the instrument may be closed but the indicator held by a brake which is released at the beginning of the interval, a second brake being applied to stop the indicator at the end. The return movement of the indicator may be used to measure the interval by switching off the current in the instrument at the beginning and applying the brake at the end.
Patent GB-540785-A (GB)
Title: Process of manufacturing articles of sintered metals or refractory (hard) alloys
IPC: B22F3/06
Filed: 1940-12-06
Abstract: 540,785. Obtaining coherent masses from powdered metals and alloys; centrifugal machines. AKTIEBOLAGET HAMMARBYLAMPAN. Dec. 6, 1940, No. 17365. Convention date, Jan. 18. [Classes 23 and 82 (i)] [Also in Group V] Articles of sintered refractory metals or alloys are made by subjecting a mixture of the powdered material with or without the addition of a substance such as glycerine, to centrifugal action in a mould, whereby the body is shaped and compressed, and afterwards sintering the body. The mould may be of graphite the surface of which may be coated with colloidal graphite, and the sintering may be effected in the mould; or a metal mould may be used which, if of fusible metals, may melt away during the sintering. In the apparatus shown the material 9 is contained in moulds 7 which are supported in sleeves 6 swinging on pivots 4 on a plate 2 rotated by a shaft 1. Pressure on the surface of the material in the mould may be increased by means of a plug 10 which may be solid or may consist of mercury. The mould may be rotated about its axis of symmetry during the operation and a number of recesses may be provided in each mould for the production of a corresponding number of bodies.
Patent GB-529969-A (GB)
Title: Improvements in apparatus for the heat treatment of fuel briquettes
IPC: C10L5/28
Filed: 1939-06-14
Abstract: 529,969. Coking processes and apparatus. INTERNATIONAL FURNACE EQUIPMENT CO., Ltd., and BAILLY, L. June 14, 1939, No. 17368. [Classes 51 (ii) and 55 (i)] Volatile constituents are driven off fuel briquettes by heating them in a closed chamber by the combustion of these constituents which are circulated through tubes adjacent to the briquettes. The briquettes are fed from a hopper d by a rotary shutter c to an endless conveyer b passing through the chamber a, and are discharged into a liquid seal e. Initial heating is by an oil burner g, the combustion products being circulated by a fan j through tube m, and. tubes h, i arranged between the upper and lower parts of the conveyer, a pipe p leading the hot gases to the atmosphere. The burner is put out of action when a temperature of 600‹C. is reached, and the fan now draws volatiles from the chamber a through pipes r, t, and burner chamber n, and circulates them through the tubes h, i together with air from inlet o. Combustion of the volatiles takes place in the tubes h, i which heat the briquettes. The combustion products and some of the volatiles are discharged through the pipe p.